ArticlePhysical and engineering sciences in medicine2024
Dosimetric comparison of proton therapy and CyberKnife in stereotactic body radiation therapy for liver cancers.
Article in Physical and engineering sciences in medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- CyberKnife SBRT plus lenvatinib and tislelizumab versus doublet systemic therapy for hepatocellular carcinoma with macrovascular invasion: A real-world IPTW-adjusted study.Clinical and translational radiation oncology · 2027Article
- Stereotactic body radiotherapy using the CyberKnife system for cutaneous metastasis of hepatocellular carcinoma: a case description.Quantitative imaging in medicine and surgery · 2026Article
- Role of Proton Beam Therapy in Hepatic Oligometastasis: Review of Evidence.Acta medica Lituanic · 2025Article
- Retrospective Comparative Study on Dose Gradients and Peripheral Dose Management in Advanced Radiotherapy Systems.Journal of medical physicsArticle
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Authors and funding
13 authors.
Funding
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Abstract
Stereotactic body radiation therapy (SBRT) has been increasingly used for the ablation of liver tumours. CyberKnife and proton beam therapy (PBT) are two advanced treatment technologies suitable to deliver SBRT with high dose conformity and steep dose gradients. However, there is very limited data comparing the dosimetric characteristics of CyberKnife to PBT for liver SBRT. PBT and CyberKnife plans were retrospectively generated using 4DCT datasets of ten patients who were previously treated for hepatocellular carcinoma (HCC, N = 5) and liver metastasis (N = 5). Dose volume histogram data was assessed and compared against selected criteria; given a dose prescription of 54 Gy in 3 fractions for liver metastases and 45 Gy in 3 fractions for HCC, with previously published consensus-based normal tissue dose constraints. Comparison of evaluation parameters showed a statistically significant difference for target volume coverage and liver, lungs and spinal cord (p < 0.05) dose, while chest wall and skin did not indicate a significant difference between the two modalities. A number of optimal normal tissue constraints was violated by both the CyberKnife and proton plans for the same patients due to proximity of tumour to chest wall. PBT resulted in greater organ sparing, the extent of which was mainly dependent on tumour location. Tumours located on the liver periphery experienced the largest increase in organ sparing. Organ sparing for CyberKnife was comparable with PBT for small target volumes.
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